.jAudio
  &--ui

  &--status-bar

  &--controls
    li
      button
        span
          &:before, &:after
            +transition("border-color")

  &--thumb
    +transition(all, .5s)

  &--time
    *
    &-elapsed
    &-total

  &--details

  &--progress-bar
    &-wrapper
    &-played
      +transition(all, .2s)
    &-pointer

  &--playlist
    &-item
      +transition(all, .5s)
      *
        +transition